DNA wquences ate uaique nit each individual, apart from identical develop dinire
ID: 206196 • Letter: D
Question
DNA wquences ate uaique nit each individual, apart from identical develop diniremesas theyage) DNA sample, can thus he used for bei"linde, la particular shot tandem repests (StRs) ave used in fotensic anahnis te they lay bye sed to establish idenity in ciminal Investigations niny or in historkal and anhacological esearcdc DNA ngeprinting has older methods, snh as bdood typing, in these areas Antmals can alss be DN 1 seguenees Ihis analysis is now widely used to chek for conect la meat for human consumption. A variety of novel analytic technispues will w dinermination of ge vistble chara teristics such as hair and eye colot fiom foreesc samples End-of-Chapter Ouestions 1 What technology can track cattle through the food processing chain? a. retinal scans c cattle color patterns d. DNA fingerprinting e. none of the above 2. Which type of body fluid can be analyzed? a. semen b. blood c. urine d. tears e. all of the above a. In the ABO blood group, how many alleles are present in the population? a. 2 c. 6 d. 3 4. Which one of the following statements about ABO blood grouping is not correct? a. People with type A blood will express antibodies against type B blood b. A person with AB blood type is the universal donor c A child may not have the same blood type as either one of his/her parents because humans are diploid d. A person with O blood type is the universal donor e. A type O person is only able to accept type O blood s. Which of the following techniques is not involved in the dentlication of D at crime scenes against possible suspects? a. PCR b. Western blot d. hybridization e. DNA fingerprintingExplanation / Answer
2. All these types of fluids can be analysed to detect disease or for research purposes.
Hence option (e) is correct.
3. In ABO blood group there are three types of alleles present namely A,B and O.
Hence option (d) is correct.
4. In ABO blood group, person with blood type O is universal donor, whereas blood type AB is universal acceptor.
Hence option (b) is correct.
5. Western blotting is a technique used to separate proteins based on their molecular weights using gel electrophoresis. It is not used for identifying DNA at crime scenes.
Hence option (b) is correct.
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